package com.design.principle.simpleresponsibility.impl;

import com.design.principle.simpleresponsibility.ICourse;

/**
 * @auther LiZiBa
 * @date 2020/8/2 11:03
 * @description:
 **/
public class CourseImpl implements ICourse {
    @Override
    public String getCourseName() {
        return null;
    }

    @Override
    public byte[] getCourseVodie() {
        return new byte[0];
    }

    @Override
    public void studyCourse() {

    }

    @Override
    public void refundCourse() {

    }
}
